Eddy reducing valve



' Jan. 6, 1942.

H. E. HAVEN 7 ET AL EDDY REDUCING VALVE Filed June 17, 1940 4Sheets-Sheet l Fla. 4

INVENTORS HUGHEHAYEN JAMESBJf/NG ATToRN r Jan. 6, 1942. HAVEN T AL EDDYREDUCING VALVE 4 Sheets-Sheet 4 Filed June 17, 1940 FIG. I4

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INVENTORS nus 5.041150 MESA/(1N6 BY 4 M...

ATTORNEM'V upper being a portion of the plan view.

Patented Jan. 6, 1942 EDDY REDUCING -V Hugh E. Haven, UnitedStatesfNavy, and James B. King, Philadelphia, Pa.

Application June 17, 1940, 'S eriaI-No. 340,935

(open-+155) (Granted under the act o1'"M archK3, 1883, as amended April30, 1928; Fill-0. (1."757) 10 Claims.

. 1 This invention relates toan eddy reducing Nalve for transmission ofany .or all fluids at any ,oriall pressures and temperatures Within thepossible limits of practical application of materials for constructionof the valve.

:A further object of this invention is to provide avalve in which thechannel through the valve is such as to eliminate or reduce any directreversal of flow of the fluid therethrough.

, A further object ofv thisinvention is to provide a valve having asubstantially streamlined channel.therethrough, whereby the. fluid willencountera minimum of resistance to flow, thereby permitting the fullvolume of fluid to pass through they valve with a minimum 'lws ofpressure.

rrApfurther object of this invention is to eliminate or to reduce to aminimum the pockets in the fluid valve which normally cause eddy andback pressure. r

. 'A further object of this invention is to provide .an eddy reducingoreliminating valve which may bemade .either in the straightway, angle,sweep- I, cross, side outlet and other forms, both in a single pieceand'a' split body type. Withthe foregoing and other objects in view, theinvention consists in the'construction, com- -bination1and arrangementof parts hereinafter described and illustrated in the drawings, in

which: r Fig.1.1 is a longitudinally sectional view taken along line I-lof Fig. '2 of this invention as applied to a straight way valve.

Fig. 2' is a plan view of Fig. 1, the lower portion being a half sectionon line 2-2 and the up- .per being a portion of the plan view.

Fig. 3 is a partial sectional view on line 33 of .-Fig,.2. r

'Fig'4 is ahalf section on line 44 of Fig. 1.

- Fig. 5 is a longitudinallysectional view of this invention asapplied'to the angle valve, on line 55 of Fig. 6.

Fig. 6 is a plan view of Fig. 5, the lower portion being a half sectionon line 6-6 and the upper being a portion of the plan View.

Fig. 7 is a partial sectional view on line 'll of Fig. 6,

Fig. 8 is a half section on line 88 of Fig.5.

Fig. 9 is a longitudinally sectional view of this invention as appliedto the cross valve, on line 9-4 of Fig. 10. Fig. 10 is a plan view of Fi9, the lower portion being a half section on lineill-l and the Fig-l1 isapartial sectional view on line ll--,ll of Fig -10.

; Figs-121s :ahalf section on line 12-12 of Fi 9.

Fig- 13 is a longitudinally sectional view of this inventionas appliedto a split bodyvalve on line I 3-l3 .of Fig.- 14.

Fig-151 is a plan view of Fi 13, the lower portion beinga half sectionon line l4-l4 and the :upper being a' half sectional view on line |4-l4'of the complete valve body 20 and 36.

I :Fig- 15 is a partial sectional view of the inlet nozzle portion 20 of,valve body on line I5-I5 of ,Fig; :14. H

Fig. 16 is a half section of the inlet nozzle portion 20 of valve bodyon line I6-I6 of Fig. 13.

; i'lhere is, shown in Fig. 1 at 20 the valve of this invention in asingle piece straightway form, .where tto the bonnet is. attached at 2|and through; Whichthe valve disc is operated to aproacnandrecede from;the valve seat 22 being atan. angleto a. centerline extending betweenthe valve inletunozzle 23 and the valve outlet nozzle-.24. ,The. essenceof this invention is to make th ,;channel v.25 from the nozzle 23 tothevalve seat; 22. as streamlined. and eddy reducing or liminatingaspossible, so that the fluid will pass from thenozzle'23 through thechannel 25 and -bythe valve *seat 22, or vice versa, with little or noreductionin pressure. --At the nozzle 23 the .channel25 is cylindricalin outline. Commencmg slightly beyond this point the'channel 25 beginsto increase in width and decrease in height gradually as it approachesthe valve seat 22, af-

fording-aresultant cross-sectional area at all times less than, andusually a gradually increasinglcross-section area over that at the inletnoz- The lowe'rsurface 28 of the channel 25 is an.

inverted'conic surface with its axis 39 to 4| coinciding with theaxis ofthe valve seat and the "neck, of the valve. This lower surface 28 guidestheflow ofjfluid to the lip of the seat 22 along :i tsentirecircumference. j

inverted conic surface with its apex on an axis $39,130 4! .at an angleto the axis 39 to 4| of the [The .upper surface 26 of the channel 25 isan lower cone "thereby. forming a tapered passage 'ahdjdincting the flowof fluid into the valve seat allffluid traveling along this top surfaceis di- .rectd. through the valve seat22 v to the nozzle '24, 'or in theopposite direction with an absence of reversal of direction and aminimum of change of direction.

The lower and upper surfaces may be varied from the fundamental conicalform by substitution of surfaces whose elements are straight lines orspecial curves, directing the flow substantially in a similar manner.The peripheral surfaces 3| of the channel curve outwardly as theyapproach the nearest point of the valve seat 30 and then curve backagain to the point 21 with the result that all fluid flows through thechannel along streamlines or with little change of direction, and sincethe cross-section area is usually greater the flow is at reduced speedwhich mitigates the eifects of turbulence and'surface frictionresistance, with a resulting minimumreduction of pressure. The nozzle 23is'shown V curves outwardly from the inlet nozzle 23 until flanged as at29, and thenozzle 24 is shown flanged as at 32 for securing the valvebody 2|] in a fluid line but the ends of the nozzle may be constructedfor connecting by welding, screwing or other suitable means. Reinforcingweb 33 across the peripheral channel 25, and other webs 34 and 35intended to stiffen members of the valve body are optional, depending onthe service and pressure for which the valve may be used. In the angle,cross and split body valve bodies the same reference numbers representsimilar parts described as present in the straightway valve body, Figs.1, 2, 3 and 4.

In all respects the angle valve body shown as Figs. 5, 6, 7 and 8include the same features as the straightway valve body shown as Figs.1, 2, 3 and 4, except for the manner of attaching the inlet nozzle 23 tothe channel 25 and the absence of the elbow or bend in thecircular-section outlet nozzle 24. The centerline of the inlet nozzle 23is above the seat and at a right angle to the centerline common to thevalve seat 22 and outlet nozzle 24.

The channel 25 is cylindrical in outline at the inlet nozzle 23,commencing slightly beyond this point the channel turns and joinssmoothly to the same type channel surfaces as described, composing thestraightway valve body Figs. 1, 2, 3 and 4. Webs 33, 34 and 35 areopchannel 25 is cylindrical at each inlet nozzle 36 and 31, commencingslightly thereafter the channel 25 bends and gradually decreases inheight and increases in width as it approaches the nearest point of thevalve seat 30, and thence with height remaining the same the widthincreases to a plane common to the centerline of the valve seat 22, atwhich plane the peripheral channel walls 3| leading from inlet nozzles36 and 31 meet, said peripheral channel walls 3| being so separated asto afford an area of channel past a valve disc when closed in the valveseat 22 at least equal to that of the smaller nozzle' 3B or 31. Theupper and lower surfaces 28 and 28 of channel 25 are composed ofinverted conics or conics whose elements are special curves, the axis 40to 4| and 39 to 4|) of each being in common with that of the valve seat22. Reinforcing webs extending across the peripheral channel 33 andother webs 34 and 35 intended to stiffen themembers of the valve bodyare optional, depending on the service for which the valve is intended.

it passes slightly beyond and tangent to the nearest point 30 of thevalve seat 22, and then curves back to the furthest point of the valveseat 21. The centers of the cross-sectional areas taken along thestreamlined channel 25 from the inlet nozzle 23 to the valve seat 22 isalways above the seat and at an angle to the centerline of the valveseat, the said cross-sectional areas of channel 25 not extending intothe portion of valve body 2| in which the disc operates. The streamlinedchannel 25 is cylindrical in outline at the inlet nozzle 23, andcommencing slightly thereafter the channel gradually decreases in heightand increases in width to' slightly beyond the nearest point 39 of thevalve seat 22, secs to afford a gradually increasing or at least equalcross-sectional areas to that of the inlet nozzle 23, and thence to theback of the valve seat 22 the channel 25 decreases in both height andwidth, meeting at a vanishing point 21, the valve seat 22 being formedin the outlet nozzle portion of valve body 36 with the said outletnozzle portion of valve body 36 being attached to the inlet nozzleportion 20, at any degree of rotation about the axis on which the discoperates to and from the valve seat 22, by means of suitablyformedbolted flanges 31 and 38 on each portion 20 and 33, respectively, of thevalve body.

Other modifications and changes in the proportions and arrangement ofthe parts may be made by those skilled in the art without departing fromthe nature of the invention, within the scope of what is hereinafterclaimed.

The invention described herein may be manufactured and/or used by or forthe Government of the United States of America for governmental purposeswithout the payment of any royalties thereon or therefor.

This application is a continuation in part of pending application,Serial No. 299,814, filed October 17, 1939, for Eddy reducing valve.

Having thus set forth anddisclosed the nature of this invention, what isclaimed is:

1. A valve body having a through passage with a valve seat between itsends, one end portion of the passage forming an inlet and the other anoutlet, said valve body having its seat directly connected to acircular-section outlet tube, said valve body having a streamlinededdy-reducing inlet channel leading smoothly froma circularsection outerend of the inlet passage to the valve seat, the said inlet being formedof surfaces at all points above an assumed plane running throughtheinlet end of the valve seat and the said inlet surfaces comprising anupper and a lower surface each being bounded and joined smoothly to avertical peripheral channel surface, the upper and lower surfaces ofsaid inlet passage being so inclined to the axis of the valve seat thatflow from the outer end of the. inlet passage will be' directed by saidsurfaces through the seat opening from around its, entire' pelriphery,said inlet passage providing a gradually the most remote side 0f thevalve genera;

increasing resultant cross-sectional ara'from the outer end of the inletpassage to the nearest side of the valve seat and thence a decreasingwidth of-inlet passageto zero-at a'point-coincidingwith seat withoutgoing therebeyond. 1P1 r 2. A valve body having-a through passagew-ith avalve seat between its enzds, one end portion of the passage forminganinlet and the other an outlet, said'valve body having 'itsseat directlyconnected. to a circular-section outlet tube said valve body having astreamlined eddy-reducing inlet channel leading smoothly from acircularsectionouterend of the inlet passage to the valve seat, the saidinlet being formed of surfaces at all points above an assumed planerunning through the inlet-end of the-valve seat andthe said inletsurfaces comprising an upperanda lower surface each being bounded andjoined smoothly to a vertical peripheral channel surface,- the upperand-lower surfaces of said inlet-passage being so inclined to the axisof the valve seat that flow from the outer end of the inlet passagewillbe directed by said surfaces through'the seat opening from aroundits entire periphery, said streamlined inlet channel having alowersurface composed of a conic-surface except for the valve seatopening, the apex of said lower conic surface being on the outlet sideof the valve seat 'with its axis coinciding with the axis of the 'valveseat, and said lowersurface of the inlet channel leading smoothly to thevalve seat aroundits till periphery, said inlet channel extending fromthe outer end of the inlet passage to the most remote side of said valveseat without going therebeyond. 1

3. A valve body havinga through passage with a valve seat between itsends, one end portion of the passage forming an inlet and the other anoutlet, said valve body having its seat direct- 1y connected to acircular-section outlet, tube, said valve body having a streamlinededdy-reducing inlet channel leading smoothly from a circular-sectionouter end of the inlet passage to the valve seat, the said inlet beingformed'of surfaces at all points above an assumed 'plane running throughthe inlet end of the valve seat and the said inlet surfaces comprisingan upper and a lower surface each being bounded and joined smoothly to avertical peripheral channel surface, the upper and lower surfaces .ofsaid inlet passage being so inclined to the axis of the valve seat thatflow from the outer end of the inlet passage will be directed by 'saidsurfaces through the seat opening from around its entire 7 periphery,said streamlined inlet-channel having a lower surface composed of aconicsurface except for the valve seat opening whose elements are specialcurves and having its apex on the outlet side of the valveseat and withits axis coinciding with the axis'of the valve seat, and said lowersurface of the inlet channel leading smoothly to the valve seat aroundits periphery, said inlet channel extending from the outer end of theinlet passage to the most remote side of said valve seat without goingtherebeyond.

4. A valve body having a through passage with a valve seat between itsends, one end portion of the passage forming an inlet and the other anoutlet, said valve body having its seat directly connected to acircular-section outlet tube, said valve body having a streamlinededdy-reducing inlet channel leading smoothly from a circularsectionouter end of the inlet passage to the valve seat, the said inlet beingformed of surfaces a't'all points above an assumed plane running through'the-inlet end of the valveseat and the said inletsurfaces comprisingan-upper-anda lower surface each being boundedand ioi-netl smoothlyto'a. vertical peripheral channel surface, the upper and lower surfacesof said inlet passage being" so inclinedto the axis of the valve seatthat flow from'the outer' end-of the inlet passage will'be directed bysaid surfaces through the seat opening from around its entire periphery,said streamlined inlet channel having -'-a lower surface composed of aconic'surfaceexcept for the valve seat opening,the apex of said lowerconic surface being onthe outlet side of-the valve seat with its axiscoinciding with the axis of the valveseat, and an upper surface composedof-a conic surface except for the space in which a valve-disc'operates,withthe axis 'ofsaid upper conic surface at such an angle to the axisofthe lower conic surface as to direct the 'fiowof fluid smoothly alongsaid surface into the valve seat opening from-around itsperiphery,-said-inlet channel extendingfrom the outer end of themletpassage to the most remote side of said valve seat without goingtherebeyond.

5. A valve body having a through passage with a valve seat between itsends, one end portion of the passage forming an inlet and the other anoutlet,said valve body having its seat directly connected to acircular-section outlet tube, said valve body having a streamlinededdy-reducing inlet channel leading smoothly from a circularsectionouter end of the inlet passage to the valve seat, the said inlet beingformed of surfaces at all points above an assumed plane running throughthe inlet end of the valve seat and the said inlet surfaces comprisingan upper and a lower surface each being bounded and joined smoothly to avertical peripheral channel surface, the upper and lower surfaces 'ofsaid inlet passage being so inclined to the axis of the valve seat thatflow from the outer end of the inlet passage will be directed by saidsurfaces through the seat opening from around its entire periphe ery,said streamlined inlet channel having alower surface composed of a conicsurface except for the valve seat opening, the apex'of said lower conicsurface being on the'outlet side -of the valve seat with its axiscoinciding with the axis of the valve seat, and an upper surfacecomposed of a conic surface except for the space in which a valve discoperates, the elements of said upper conic surface being special curves,with the axis of said upper conic surface at such an angle to the axisof the lower conic surface as to direct the flow of fluid smoothly alongsaid surfaces into the valve seat opening from around its periphery,said inlet channel extending from the outer end of the inlet passage tothe most remote side of said valve seat without going therebeyond.

6. A valve body having a through passage with a valve seat between itsends, one end portion of the passage forming an inlet and. the other anoutlet, said valve body having its seat directly connected to acircular-section outlet tube, said valve body having a streamlinededdy-reducing inlet channel leading smoothly from a circularsectionouter end of the inlet passage to the valve seat, the said inlet beingformed of surfaces at all points above an assumed plane running throughthe inlet end of the valve seat and the said inlet surfaces comprisingan upper and a lower surface each being bounded and joined smoothly to avertical peripheral channel surface,

the upper and lower surfaces of said inlet passage being so inclined tothe axis of the valve seat that flow from the outer end of the inletpassage will be directed by said surfaces through the seat opening fromaround its entire periphery, said streamlined inlet channel having alower surface composed of a conic surface except for the valve seatopening, the apex of said lower conic surface being on the outlet sideof the valve seat with its axis coinciding with the axis of the valveseat, and an upper surface composed of a flat surface except for thespace in which a valve disc operates, said upper fiat surface being atsuch an angle to the axis of the lower conic surface as to direct theflow of fluid smoothly along said surfaces into the valve seat openingfrom around said periphery, said inlet channel extending from the outerend of the inlet passage to the most remote side of said valve seatwithout going therebeyond.

7. A valve body having a through passage with a valve seat between itsends, one end portion of the passage forming an inlet and the other anoutlet, said valve body having its seat directly connected to acircular-section outlet tube, said valve body having a streamlinededdy-reducing inlet channel leading smoothly from a circularsectionouter end of the inlet passage to the valve seat, the said inlet beingformed of surfaces at all points above an assumed plane running throughthe inlet end of the valve seat and the said inlet surfaces comprisingan upper and a lower surface each being bounded and joined smoothly to avertical peripheral channel surface, the upper and lower surfaces ofsaid inlet passage being so inclined to the axis of the valve seat thatflow from the outer end of the inlet passage will be directed by saidsurfaces through the seat opening from around its periphery, the topsurface of said inlet channel leading smoothly from the outer end of theinlet passage, except for a space in which a valve disc operates, to themost remote side of the valve seat without going therebeyond.

8. A valve body having a through passage with a valve seat between itsends, one end portion of the passage forming an inlet and the other anoutlet, said valve body having its seat directly connected to acircular-section outlet tube, said Valve body having a streamlinededdy-reducing inlet channel leading smoothly from a circularsectionouter end of the inlet passage to the valve seat, the said inlet beingformed of surfaces at all points above an assumed plane running throughthe inlet end of the valve seat and the said inlet surfaces comprisingan upper and a lower surface each being bounded and joined smoothly to avertical peripheral channel surface, the upper and lower surfaces ofsaid inlet passage being so inclined to the axis of the valve seat thatflow from the outer end of the inlet passage will be directed by saidsurfaces through the seat opening-from around its entire periphery, theperipheral rim of said inlet channel curving'outwardly from the outerend of the inlet passage and then back again smoothly to the most remoteside of the Valve seat without going therebeyond.

9. A valve body having a through passage with a valve seat between itsends, one end portion of the passage forming an inlet and the other anoutlet, said valve body having its seat directly connected to acircular-section outlet tube, said valve body having a streamlinededdy-reducing inlet channel leading smoothly from a circularsectionouter end of the inlet passage to the valve seat, the said inlet beingformed of surfaces at all points above an assumed plane running throughthe inlet end of the valve seat and the said inlet surfaces comprisingan upper and a lower surface each being bounded and joined smoothly to avertical peripheral channel surface, the upper and lower surfaces ofsaid inlet passage being so inclined to the axis of the valve seat thatflow from the outer end of the inlet passage will be directed by saidsurfaces through the seat opening from around its entire periphery, saidstreamlined inlet channel having a decreased height and increased widthas it approaches the nearest side of the valve seat from the outer endof the inlet passage and thence a decreasing height of peripheralchannel to zero at a point coinciding with the most remote side of thevalve seat without going therebeyond.

10. A valve body having a through passage with a valve seat between itsends, one end portion of the passage forming an inlet and the other anoutlet, said valve body having its seat directly connected to acircular-section outlet tube, said valve body having a streamlinededdy-reducing inlet channel leading smoothly from a circularsectionouter end of the inlet passage to the valve seat, the said inlet beingformed of surfaces at all points above an assumed plane running throughthe inlet end of the valve seat and the said-inlet surfaces comprisingan upper and a lower surface each being bounded and joined smoothly to avertical peripheral channel surface, the upper and lower surfaces ofsaid inlet passage being so inclined to the axis of the valve seat thatflow from the outer end of the inlet passage will be directed by saidsurfaces through the seat opening from around its entire periphery, saidinlet passage providing a gradually increasing resultant cross-sectionarea from the outer end of the inlet passage to the nearest side of thevalve seat and thence a decreasing crosssection area except for a spacein which the valve disc operates to a zero area coinciding with the mostremote side of the valve seat without going therebeyond.

HUGH E. HAVEN. JAMES B. KING.

